Examples of java.awt.AWTKeyStroke

java.awt.AWTKeyStroke
An AWTKeyStroke represents a key action on the keyboard, or equivalent input device. AWTKeyStrokes can correspond to only a press or release of a particular key, just as KEY_PRESSED and KEY_RELEASED KeyEvents do; alternately, they can correspond to typing a specific Java character, just as KEY_TYPED KeyEvents do. In all cases, AWTKeyStrokes can specify modifiers (alt, shift, control, meta, altGraph, or a combination thereof) which must be present during the action for an exact match.
AWTKeyStrokes are immutable, and are intended to be unique. Client code should never create an AWTKeyStroke on its own, but should instead use a variant of getAWTKeyStroke. Client use of these factory methods allows the AWTKeyStroke implementation to cache and share instances efficiently. @see #getAWTKeyStroke @version 1.28, 02/06/06 @author Arnaud Weber @author David Mendenhall @since 1.4

    public void processKeyEvent(Component focusedComponent, KeyEvent e) {
        if (e.getID() == KeyEvent.KEY_PRESSED && focusedComponent.getFocusTraversalKeysEnabled() && !e.isConsumed())
        {
            this.handleArrowKeys(focusedComponent, e);


            AWTKeyStroke stroke = AWTKeyStroke.getAWTKeyStrokeForEvent(e);
            AWTKeyStroke oppStroke = AWTKeyStroke.getAWTKeyStroke(stroke.getKeyCode(),
                                                    stroke.getModifiers(),
                                                    !stroke.isOnKeyRelease());
            Set<AWTKeyStroke> toTest;
            boolean reasonSet = false;

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    protected boolean mutatesTo(Object oldInstance, Object newInstance) {
        return oldInstance.equals(newInstance);
    }


    protected Expression instantiate(Object oldInstance, Encoder out) {
        AWTKeyStroke key = (AWTKeyStroke) oldInstance;


        char ch = key.getKeyChar();
        int code = key.getKeyCode();
        int mask = key.getModifiers();
        boolean onKeyRelease = key.isOnKeyRelease();


        Object[] args = null;
        if (ch == KeyEvent.CHAR_UNDEFINED) {
            args = !onKeyRelease
                    ? new Object[]{code, mask}
                    : new Object[]{code, mask, onKeyRelease};
        } else if (code == KeyEvent.VK_UNDEFINED) {
            if (!onKeyRelease) {
                args = (mask == 0)
                        ? new Object[]{ch}
                        : new Object[]{ch, mask};
            } else if (mask == 0) {
                args = new Object[]{ch, onKeyRelease};
            }
        }
        if (args == null) {
            throw new IllegalStateException("Unsupported KeyStroke: " + key);
        }
        Class type = key.getClass();
        String name = type.getName();
        // get short name of the class
        int index = name.lastIndexOf('.') + 1;
        if (index > 0) {
            name = name.substring(index);

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    protected boolean mutatesTo(Object oldInstance, Object newInstance) {
        return oldInstance.equals(newInstance);
    }


    protected Expression instantiate(Object oldInstance, Encoder out) {
        AWTKeyStroke key = (AWTKeyStroke) oldInstance;


        char ch = key.getKeyChar();
        int code = key.getKeyCode();
        int mask = key.getModifiers();
        boolean onKeyRelease = key.isOnKeyRelease();


        Object[] args = null;
        if (ch == KeyEvent.CHAR_UNDEFINED) {
            args = !onKeyRelease
                    ? new Object[]{code, mask}
                    : new Object[]{code, mask, onKeyRelease};
        } else if (code == KeyEvent.VK_UNDEFINED) {
            if (!onKeyRelease) {
                args = (mask == 0)
                        ? new Object[]{ch}
                        : new Object[]{ch, mask};
            } else if (mask == 0) {
                args = new Object[]{ch, onKeyRelease};
            }
        }
        if (args == null) {
            throw new IllegalStateException("Unsupported KeyStroke: " + key);
        }
        Class type = key.getClass();
        String name = type.getName();
        // get short name of the class
        int index = name.lastIndexOf('.') + 1;
        if (index > 0) {
            name = name.substring(index);

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        if (!getFocusTraversalKeysEnabled() || e.isConsumed()) {
            return false;
        }


        AWTKeyStroke stroke = AWTKeyStroke.getAWTKeyStrokeForEvent(e);
        Set toTest;
        Component currentFocused = e.getComponent();


        Component last = getFocusTraversalPolicy().getLastComponent(this);
        toTest = getFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS);

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    /**
     * Checks the key event is the input method selection key or not.
     */
    private boolean checkInputMethodSelectionKey(KeyEvent event) {
        if (inputMethodSelectionKey != null) {
            AWTKeyStroke aKeyStroke = AWTKeyStroke.getAWTKeyStrokeForEvent(event);
            return inputMethodSelectionKey.equals(aKeyStroke);
        } else {
            return false;
        }
    }

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    private boolean checkPageNavigation(KeyEvent e) {
        if (SwingUtilities.getWindowAncestor(e.getComponent()) != appWin.getFrame()) {
            return false;
        }
        AWTKeyStroke ks = AWTKeyStroke.getAWTKeyStrokeForEvent(e);
        int editors = appWin.getEditorService().getNumberOfEditors();
        if (ks.equals(ctrlTab)) {
            if (editors >= 2) {
                selectEditor(Direction.NEXT);
            }
            return true;
        } else if (ks.equals(ctrlShiftTab)) {
            if (editors >= 2) {
                selectEditor(Direction.PREVIOUS);
            }
            return true;
        }

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            if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
                cancel();
            } else if ((e.getID() == KeyEvent.KEY_RELEASED) && (e.getKeyCode() == KeyEvent.VK_CONTROL)) {
                finalSelectionMade();
            } else {
                AWTKeyStroke ks = AWTKeyStroke.getAWTKeyStrokeForEvent(e);
                if (moveDownKeys.contains(ks)) {
                    updateSelection(Direction.NEXT);
                    return true;
                }
                if (moveUpKeys.contains(ks)) {

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        if (!getFocusTraversalKeysEnabled() || e.isConsumed()) {
            return false;
        }


        AWTKeyStroke stroke = AWTKeyStroke.getAWTKeyStrokeForEvent(e);
        Set toTest;
        Component currentFocused = e.getComponent();


        Component last = getFocusTraversalPolicy().getLastComponent(this);
        toTest = getFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS);

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